Rough surface scattering based on facet model

A model for the radar return from bare ground was developed to calculate the radar cross section of bare ground and the effect of the frequency averaging on the reduction of the variance of the return. It is shown that, by assuming that the distribution of the slope to be Gaussian and that the distribution of the length of the facet to be in the form of the positive side of a Gaussian distribution, the results are in good agreement with experimental data collected by an 8- to 18-GHz radar spectrometer system. It is also shown that information on the exact correlation length of the small structure on the ground is not necessary; an effective correlation length may be calculated based on the facet model and the wavelength of the incident wave

The intellect, mobility and epistemic positioning in doing comparisons and comparative education

This article offers a reflexive analysis and discussion on the relationship between academic mobility and comparative knowledge creation. It argues that what constitutes ‘comparative knowledge’ is not solely Wissenschaften but more often entwined with Weltanschauungen, derived from lived experiences – as exemplified in the biographic narratives of some of the major intellects. It reviews the notions of the ‘gaze’ and the concepts of the Other and Homeworld/Alienworld as epistemic positioning in doing comparative education. In the framework of phenomenological thinking, the paper discusses the intimate relationship between comparative knowledge and positional knowledge

Continuous selections of multivalued mappings

This survey covers in our opinion the most important results in the theory of continuous selections of multivalued mappings (approximately) from 2002 through 2012. It extends and continues our previous such survey which appeared in Recent Progress in General Topology, II, which was published in 2002. In comparison, our present survey considers more restricted and specific areas of mathematics. Note that we do not consider the theory of selectors (i.e. continuous choices of elements from subsets of topological spaces) since this topics is covered by another survey in this volume

New perspectives on evolutionary medicine: the relevance of microevolution for human health and disease

Evolutionary medicine (EM) is a growing field focusing on the evolutionary basis of human diseases and their changes through time. To date, the majority of EM studies have used pure theories of hominin macroevolution to explain the present-day state of human health. Here, we propose a different approach by addressing more empirical and health-oriented research concerning past, current and future microevolutionary changes of human structure, functions and pathologies. Studying generation-to-generation changes of human morphology that occurred in historical times, and still occur in present-day populations under the forces of evolution, helps to explain medical conditions and warns clinicians that their current practices may influence future humans. Also, analyzing historic tissue specimens such as mummies is crucial in order to address the molecular evolution of pathogens, of the human genome, and their coadaptations.Frank Jakobus Rühli and Maciej Henneber

A Millennium Learning Goal for education post‐2015: a question of outcomes or processes

As the target year for the current Millennium Development Goal of universal completion of primary education approaches, three World Bank economists have proposed its replacement with a Millennium Learning Goal. This is part of a trend of increased privileging of learning outcomes. The proposal is assessed from the perspective of human rights-based and social justice conceptualisations of education quality. A Millennium Learning Goal may enhance information on inclusion, conceived as equal opportunity to achieve learning outcomes. However, there is a danger that it would be misused to generate high stakes tests that can be detrimental to the achievement of goals that are not readily measurable and hence to the relevance of education. It is argued that a process goal with qualitative targets for the assessment of learning, for the monitoring of educational processes and for the processes by which learning goals are determined would be more appropriate for the international level.As the target year for the current Millennium Development Goal of universal completion of primary education approaches, three World Bank economists have proposed its replacement with a Millennium Learning Goal. This is part of a trend of increased privileging of learning outcomes. The proposal is assessed from the perspective of human rights-based and social justice conceptualisations of education quality. A Millennium Learning Goal may enhance information on inclusion, conceived as equal opportunity to achieve learning outcomes. However, there is a danger that it would be misused to generate high stakes tests that can be detrimental to the achievement of goals that are not readily measurable and hence to the relevance of education. It is argued that a process goal with qualitative targets for the assessment of learning, for the monitoring of educational processes and for the processes by which learning goals are determined would be more appropriate for the international level

From fuzzy to annotated semantic web languages

The aim of this chapter is to present a detailed, selfcontained and comprehensive account of the state of the art in representing and reasoning with fuzzy knowledge in Semantic Web Languages such as triple languages RDF/RDFS, conceptual languages of the OWL 2 family and rule languages. We further show how one may generalise them to so-called annotation domains, that cover also e.g. temporal and provenance extensions